Merge remote-tracking branch 'origin/core' into ui
Starting work on Pinned Forum Collection

-Added pinned forum support to the main page.
-Created shell for pinned forums, currently linked to ForumCollection.
Merge branch 'ui' of https://github.com/bootlegrobot/awful2 into ui
Removing duties from container objects

Viewmodels should do all the heavy lifting, not the data models...
Lots of fixes; see description.

- Added Extensions for replying to threads, toggling bookmarks, and
editing posts.
- Corrected properties of ThreadListControl and
AppendingThreadListControl.
- Added ContextMenu for items in a ForumListControl (long press to
activate).
- Refactored SampleData objects to CommonData objects.
- Created PinnedItemsCollection class; an instance of this class
contains items that are IPinnable.
- Created ObservableSet helper class; this class updates contained
items when equivalent items are added.
- Added some common commands for button tasks.
- Fixed an issue where attempts to load the last read page of a thread
loaded the first page instead.
Added SampleData for design, ForumItemControl for forums
A bunch of changes. Now at 2.0
Resolving SkyDrive Sync issues.